Home / 215,694.40-323,733.60-126,836.80

Finding the Fourth Proportional to 215,694.40, 323,733.60 and 126,836.80

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Solution

The fourth proportional to 215,694.40, 323,733.60 and 126,836.80 is: 190,368.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,694.40 : 323,733.60 = 126,836.80 : x
  2. Step 2: Convert to fraction form
    215,694.40/323,733.60 = 126,836.80/x
  3. Step 3: Cross multiply
    215,694.40x = 323,733.60 × 126,836.80
  4. Step 4: Simplify right side
    215,694.40x = 41,061,333,876.48
  5. Step 5: Solve for x
    x = 41,061,333,876.48/215,694.40
  6. Step 6: Final answer
    x = 190,368.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.